21434840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2069}}^1$

素因数の和:2124

約数の個数: 64

約数和(自身を含む): 56635200

約数和(自身を除く): 35200360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2069, 2072, 2590, 4138, 5180, 8276, 10345, 10360, 14483, 16552, 20690, 28966, 41380, 57932, 72415, 76553, 82760, 115864, 144830, 153106, 289660, 306212, 382765, 535871, 579320, 612424, 765530, 1071742, 1531060, 2143484, 2679355, 3062120, 4286968, 5358710, 10717420, 21434840]

約数ペア:

[(1, 21434840), (2, 10717420), (4, 5358710), (5, 4286968), (7, 3062120), (8, 2679355), (10, 2143484), (14, 1531060), (20, 1071742), (28, 765530), (35, 612424), (37, 579320), (40, 535871), (56, 382765), (70, 306212), (74, 289660), (140, 153106), (148, 144830), (185, 115864), (259, 82760), (280, 76553), (296, 72415), (370, 57932), (518, 41380), (740, 28966), (1036, 20690), (1295, 16552), (1480, 14483), (2069, 10360), (2072, 10345), (2590, 8276), (4138, 5180)]